Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 249 insertions, 0 deletions

diff --git a/slideshow/source/engine/shapes/intrinsicanimationactivity.cxx b/slideshow/source/engine/shapes/intrinsicanimationactivity.cxx
new file mode 100644
index 000000000..ed288f486
--- /dev/null
+++ b/slideshow/source/engine/shapes/intrinsicanimationactivity.cxx
@@ -0,0 +1,249 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <tools/diagnose_ex.h>
+
+#include <subsettableshapemanager.hxx>
+#include <eventqueue.hxx>
+#include "intrinsicanimationactivity.hxx"
+#include <intrinsicanimationeventhandler.hxx>
+
+#include <memory>
+
+namespace slideshow::internal
+{
+        namespace {
+
+        /** Activity for intrinsic shape animations
+
+            This is an Activity interface implementation for intrinsic
+            shape animations. Intrinsic shape animations are
+            animations directly within a shape, e.g. drawing layer
+            animations, or GIF animations.
+         */
+        class IntrinsicAnimationActivity : public Activity
+        {
+        public:
+            /** Create an IntrinsicAnimationActivity.
+
+                @param rContext
+                Common slideshow objects
+
+                @param rDrawShape
+                Shape to control the intrinsic animation for
+
+                @param rWakeupEvent
+                Externally generated wakeup event, to set this
+                activity to sleep during inter-frame intervals. Must
+                come from the outside, since wakeup event and this
+                object have mutual references to each other.
+
+                @param rTimeouts
+                Vector of timeout values, to wait before the next
+                frame is shown.
+             */
+            IntrinsicAnimationActivity( const SlideShowContext&         rContext,
+                                        const DrawShapeSharedPtr&       rDrawShape,
+                                        const WakeupEventSharedPtr&     rWakeupEvent,
+                                        const ::std::vector<double>&    rTimeouts,
+                                        ::std::size_t                   nNumLoops );
+            IntrinsicAnimationActivity(const IntrinsicAnimationActivity&) = delete;
+            IntrinsicAnimationActivity& operator=(const IntrinsicAnimationActivity&) = delete;
+
+            virtual void dispose() override;
+            virtual double calcTimeLag() const override;
+            virtual bool perform() override;
+            virtual bool isActive() const override;
+            virtual void dequeued() override;
+            virtual void end() override;
+
+            bool enableAnimations();
+
+        private:
+            SlideShowContext                        maContext;
+            std::weak_ptr<DrawShape>              mpDrawShape;
+            WakeupEventSharedPtr                    mpWakeupEvent;
+            IntrinsicAnimationEventHandlerSharedPtr mpListener;
+            ::std::vector<double>                   maTimeouts;
+            ::std::size_t                           mnCurrIndex;
+            ::std::size_t                           mnNumLoops;
+            ::std::size_t                           mnLoopCount;
+            bool                                    mbIsActive;
+        };
+
+
+        class IntrinsicAnimationListener : public IntrinsicAnimationEventHandler
+        {
+        public:
+            explicit IntrinsicAnimationListener( IntrinsicAnimationActivity& rActivity ) :
+                mrActivity( rActivity )
+            {}
+            IntrinsicAnimationListener(const IntrinsicAnimationListener&) = delete;
+            IntrinsicAnimationListener& operator=(const IntrinsicAnimationListener&) = delete;
+
+        private:
+
+            virtual bool enableAnimations() override { return mrActivity.enableAnimations(); }
+            virtual bool disableAnimations() override { mrActivity.end(); return true; }
+
+            IntrinsicAnimationActivity& mrActivity;
+        };
+
+        }
+
+        IntrinsicAnimationActivity::IntrinsicAnimationActivity( const SlideShowContext&         rContext,
+                                                                const DrawShapeSharedPtr&       rDrawShape,
+                                                                const WakeupEventSharedPtr&     rWakeupEvent,
+                                                                const ::std::vector<double>&    rTimeouts,
+                                                                ::std::size_t                   nNumLoops ) :
+            maContext( rContext ),
+            mpDrawShape( rDrawShape ),
+            mpWakeupEvent( rWakeupEvent ),
+            mpListener( std::make_shared<IntrinsicAnimationListener>(*this) ),
+            maTimeouts( rTimeouts ),
+            mnCurrIndex(0),
+            mnNumLoops(nNumLoops),
+            mnLoopCount(0),
+            mbIsActive(false)
+        {
+            ENSURE_OR_THROW( rContext.mpSubsettableShapeManager,
+                              "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid shape manager" );
+            ENSURE_OR_THROW( rDrawShape,
+                              "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid draw shape" );
+            ENSURE_OR_THROW( rWakeupEvent,
+                              "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Invalid wakeup event" );
+            ENSURE_OR_THROW( !rTimeouts.empty(),
+                              "IntrinsicAnimationActivity::IntrinsicAnimationActivity(): Empty timeout vector" );
+
+            maContext.mpSubsettableShapeManager->addIntrinsicAnimationHandler(
+                mpListener );
+        }
+
+        void IntrinsicAnimationActivity::dispose()
+        {
+            end();
+
+            if( mpWakeupEvent )
+                mpWakeupEvent->dispose();
+
+            maContext.dispose();
+            mpDrawShape.reset();
+            mpWakeupEvent.reset();
+            maTimeouts.clear();
+            mnCurrIndex = 0;
+
+            maContext.mpSubsettableShapeManager->removeIntrinsicAnimationHandler(
+                mpListener );
+        }
+
+        double IntrinsicAnimationActivity::calcTimeLag() const
+        {
+            return 0.0;
+        }
+
+        bool IntrinsicAnimationActivity::perform()
+        {
+            if( !isActive() )
+                return false;
+
+            DrawShapeSharedPtr pDrawShape( mpDrawShape.lock() );
+            if( !pDrawShape || !mpWakeupEvent )
+            {
+                // event or draw shape vanished, no sense living on ->
+                // commit suicide.
+                dispose();
+                return false;
+            }
+
+            const ::std::size_t nNumFrames(maTimeouts.size());
+
+            // mnNumLoops == 0 means infinite looping
+            if( mnNumLoops != 0 &&
+                mnLoopCount >= mnNumLoops )
+            {
+                // #i55294# After finishing the loops, display the last frame
+                // powerpoint 2013 and firefox etc show the last frame when
+                // the animation ends
+                pDrawShape->setIntrinsicAnimationFrame(nNumFrames - 1);
+                maContext.mpSubsettableShapeManager->notifyShapeUpdate( pDrawShape );
+
+                end();
+
+                return false;
+            }
+
+            ::std::size_t       nNewIndex = 0;
+
+            pDrawShape->setIntrinsicAnimationFrame( mnCurrIndex );
+
+            mpWakeupEvent->start();
+            mpWakeupEvent->setNextTimeout( maTimeouts[mnCurrIndex] );
+
+            mnLoopCount += (mnCurrIndex + 1) / nNumFrames;
+            nNewIndex = (mnCurrIndex + 1) % nNumFrames;
+
+            maContext.mrEventQueue.addEvent( mpWakeupEvent );
+            maContext.mpSubsettableShapeManager->notifyShapeUpdate( pDrawShape );
+            mnCurrIndex = nNewIndex;
+
+            return false; // don't reinsert, WakeupEvent will perform
+                          // that after the given timeout
+        }
+
+        bool IntrinsicAnimationActivity::isActive() const
+        {
+            return mbIsActive;
+        }
+
+        void IntrinsicAnimationActivity::dequeued()
+        {
+            // not used here
+        }
+
+        void IntrinsicAnimationActivity::end()
+        {
+            // there is no dedicated end state, just become inactive:
+            mbIsActive = false;
+        }
+
+        bool IntrinsicAnimationActivity::enableAnimations()
+        {
+            mbIsActive = true;
+            return maContext.mrActivitiesQueue.addActivity( std::dynamic_pointer_cast<Activity>(shared_from_this()) );
+
+        }
+
+
+        ActivitySharedPtr createIntrinsicAnimationActivity(
+            const SlideShowContext&         rContext,
+            const DrawShapeSharedPtr&       rDrawShape,
+            const WakeupEventSharedPtr&     rWakeupEvent,
+            const ::std::vector<double>&    rTimeouts,
+            sal_uInt32                      nNumLoops)
+        {
+            return std::make_shared<IntrinsicAnimationActivity>(rContext,
+                                               rDrawShape,
+                                               rWakeupEvent,
+                                               rTimeouts,
+                                               nNumLoops);
+        }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */